Lock



June 1927' H. FREEDMAN ET AL Loon , Filed Aug. 28. 1926 b TEE IN VEN TORS HBonsky BY Hfieedman 4AM A TTORNE Y Patented June 21, 1927.

UNITED STATES 1,633,173 PATENT oFFioe.

HYMAn FREEDMAN Ann HARRY BORSiKY, on NEW omz, n. Y.

Loox.

Application filed nu iist'ae, 1926 seriaino. 132L088.

The main object of this invention isto provide an improved type of lock WhiCh iS- adapted to engage a door frame at thefltop and bottom of the latter. y

Another object of the invention is to provide a look which may be openedvfroniwithin or without and uses a pair of oppositely disposed and oppositely moving bars to look a door Within a frame; The lock uses the ordinary key cylinder on the outside of the door and is provided with a wing bolt on the inner side, both means being adapted to retract or extend the locking bars out of letter joinfthe emigfiene; The wall and a is proyided with teeth li ar ound pairti' -ofits tom of the loic kfia sing This their keepers or into their keepers in the frame.

The above and other objects will become apparent in the description. below, in which characters of reference refer to like-named parts in'the drawing} V I Referring: briefi; to the drawing, Figure 1 is a side eleiiational View of the lock with the cover removed froin thecasing for the purpose of illustrating the internal operat ingniechanisni. I I

Figure Qis a sectional side ele ational- View ofthe same, taken on line 2-2 of Figurekl., I t

FigureS is an end eleyational view of Figure 1. 1 g N; a v

Figur dis a perspective ie er the. look, showing the locking bars in extended en-- tion.

nuineral 10 indicates ithereclteingiilarib V I h b ottfoinfisiiif-e tegzral withapair. or 'ne'w 111 and 12' and ad di onal side iyallsl3' end 14,

bottom coinbine to form rectangnlar'hoi ing in which a relatively largespin 15 is mounted The spnr gear provided with conical depression S 16 which are formed axially aid receiye c nieallqgsg 16* which latter project from the adj aoeirt' th oes of the b0t to1n 10 and coyer 29. Thesehig's serve as jeurneisgupeii which the spill" gem: is mounted. Said'spu'r gear has no connection With any}- of the'niechanis'rn lying eiz ternally ofthellock; spur gear ro' tates approximately 901 degrees of: less and periphery only. These teeth aref engaged by similar ones formed on the .pl eripheryiof a pinion 18," the; latter being rot ably Inonnt ed withiiifi the chamber, 19. 65558 Casi;

ing immediately below the spu ear 15'.

'Referringl in detail eerie Clt'diifiiligi,

' Said pinion is provid'edwithla square axial opening 20 Which passes entirely thiti it's pinion, A roiind shift 2 1" passes partly thrii the square opening'20 in the pinion.

One end of this shaft is rigidly secured to a plate 22 of a key cylinder 23Wliose' rotatable ban-e1 Within'the cylinder is rigidly attached to said plate 22. The cylinder has a h0 i1s ins-24 integral with and si'lrinoiinting it in which theplungers of the barrel locking mechanisniare located, Thisoyl'inde'r' has one end covered afiange 2 5 whichis einbeddeclin a reoess' 26 o fa door plate 27,

the latter being mounted on the outside surface of the door 28 by sorews ii hich engage" the door plate from the oppositeside' of the door 28. The end SO of the roiind shaft VQl projects from the extremity of the latter and issqnare in cross "section, it being noted that the distancebetween,thefiats of this square end, is gi.-eater than' the dianheter of the round shaft 21 withfwhioh the ,sqiiare e1 "iS".i'I:i Begral; Approximatelyhalfjof the 1e h, h f the square, and extends into the square opening 20 formed in the pinion and tiiilfeigifiiriing portion r the length projects from the cover 29'. The square end '30 of f V reon; his square sleeve is rovi'ded w th a fixe'd additional sleeve 32 which is lipped, nto its open end; the id tion al slee've beiiig' slidable upon the square end-e0 and rotatable uporithe ronntl shaft section 21'; The sleeve 31 has a longitucli in sqi a'rf Bere- B$fltherein in" which the rbiiiidhead 35: ajt the end o'it" the square poition fi Uiis slidable i S'aid flsleeVehas a Wing late 34 at its" outer, end by hifchfineans d i v ml tel; Pitt 'Wit the quire beret-3 3 time sleev ;eeoi springfee i en and yield'ably' urges v the 7 sleeve outwardly e being erie-ea u on the not of themed e lififj e le ts Qp'r it 6nd, dis/111? gidijn'thelgere ee' 'ftheesleeve A e": perigee v 50? mounted ,on. the end I all- 1 of. the-dieing 'viithii the chamber thereiofa'nd its'fieeen'd is'fleziible and e n' gages the teeth of the pinion 18 to frictionally retain this pinion in place.

A pair of pins 38 and 39, diametrically pposed to each other, project upwardly from the face of the spur gear 15. The pin 38 is slidable in a slot 40 which extends horizontally across part of the width of a looking bar 41. The lower end of the locking bar 42 is adapted to be extended thru a channel 43 out of the lock and in a clownward direction. The remaining pin 39, mounted on the opposite side of the face of the spur gear operates slidably in a widthwise extending slot 44 formed in a locking bar 45, whose end 46 extends out of a channel 47 situated near one corner of the casing. The locking bar is slidable longitudinally into a chamber 190i the casing and its retractive movement is limited by a stop pin 48. Two of the corners of the casing walls are provided with bosses 49 in which threaded holes 50 are provided which are engaged by screws passingthru suitable openings formed in the cover 29.

This mechanism 'is adapted to extend the ends 46 and 42 of the locking bars 41 and 45 in'opposite directions out of the casing of the mechanism. The barsmay be of a length suitable to extend from the center of the upper and lower ends of the door so that the ends 42 and 46 of said bars may be projected into the customary recesses of suitable keepers, said keepers not being shown on the drawing. When a key is inserted into the barrel located in the cylinder 23, the plungers in the housing 24 are normally aligned with the periphery of the barrel as is well known, after which said barrel may then be readily rotated in either direction. As the barrel is rotated, the plate 22 is rotated a corresponding degree, carrying with it the round shaft 21 and the square end 30. As the square end 30 normally carries the sleeve 33, which latter is square in cross section and slidable in the square opening 20 of the pinion gear, the latter is rotated also to a corresponding degree as the barrel in the key cylinder. Rotation of this pinion 18 transmits movement to the spur gear 15 and the pins 38 and 39 describe an arcuate movement and cross from one side of the sleeves 40 and 44 to the opposite ends. As these pins 38 and 39 move longitudinally in either direction, the locking bars 41 and 45 are moved in the same direction as their corresponding pins and are either retracted or extended accordingly as the spur gear is rotated. In this'manner, the locking bars 45 and 41 may be retract-ed or extended thru the means ofa key inserted into the barrel of the locking cylinder. In order to extend or retract these locking bars from the opposite side of'the door, the wing plate 34 is depressed or pushed in wardly toward the look so that the additional sleeve 32 comes in contact with the round portion of the shaft 21. This permits the sleeve 33 to be rotated independently of the shaft 21 and as the sleeve 33 is square in cross section and slidably fits into the square opening 20 of the pinion, the latter and spur gear may be rotated accordingly as the wing plate 34 is rotated. When 30 so that the locking mechanism is normally in a position which permits the locking bars to be either extended or retracted by means of the key.

It is to be noted that certain changes in form and construction may be made without departing from the spirit'and scope of the invention.

1. In a lock, a casing, a spur gear rotatable in said casing, a pinion in the casing meshing with said spur gear, locking bars extending from said casing and being extensible and retractable out of said casing, diametrically opposed pins on opposite sides of said spur gear, said locking bars having slots therein, said pins engaged in said slots, the spur gear when rotated arcuately extend ing or retracting said locking bars, and means for independently actuating said locking bars from either side of a door.

2. In a lock,'a casing, a spur gear rotatable in said casing, a pinion in the casing meshing with said spur gear, locking bars extending from said casing and being extensible and retractable out of said casing, diametrically opposed pins on opposite sides of said spur gear, said locking bars having slots therein,said pins engaged in said slots, the spur gear when rotated: arcuately extending or retracting said locking bars, said slots extending widthwise in the lockingbars, the pins on said spur gear passing from i one end of said slots to the'opposite end when said spur gear is rotated in retracting or extending said locking bars, and cooperating means extending from opposite sides of'the casing for independently actuating said spur gear from opposite sides of a door. Y

3 In a look, a casing, a spur gear rotatable in said casing, a pinion in the casing meshing with said spur gear, locking bars extending from said casing and being extensible and retractable out of said casing, diametrically opposed pins on opposite sides of said spur gearpsaid locking bars having slots therein, said pins engaged in said slots, the spur gear when rota-ted arcuately extending'or retracting said locking bars, said slots extendi'ng'widthwise in the locking bars, the pins onsaid spur gear passing from one end of said slots to the opposite end when said spur gear 1s rotated in retracting or extending said locking bars, cooperating means extending from opposite sides of the casing casing, a round shaft extending from said key cylinder actuated thereby into the easing, said pinion having a square opening therein larger than said shaft, a sleeve slidable in the square opening of said pinion and rotatable on said shaft, and means mutually cooperative on said shaft and sleeve for normally locking said sleeve on said shaft.

4. In a lock, a casing, a spur gear rotatable in said casing, a pinion in the casing meshing with said spur gear, locking bars extending from said casing and being extensible and retractable out of said casing, diametrically opposed pins on opposite sides of said spur gear, said locking bars having slots therein, said pins engaged in said slots, the spur gear when rotated arcuately extending or retracting said locking bars, said slots extending widthwise in the locking bars, the pins on said spur gear passing from one end of said slots to the opposite end when said spur gear is rotated in retracting or extending said locking bars, cooperating means extending from opposite sides of the casing for independently actuating said spur gear from opposite sides of a door comprising a key cylinder mounted on'one side of said casing, a round shaft extending from said key cylinder actuated thereby into the casing, said pinion having a square opening therein larger than said shaft, a sleeve slidable in the square opening of said pinion and rotatable on said shaft, said shaft being circular in cross section, a square end integral with and projecting from said shaft, said sleeve being slidable on said square end and when so positioned look ing the sleeve rotatably on said square end, and means for normally causing the sleeve to engage the square end of said shaft.

In testimony whereof we affix our signatures.

HYMAN FREEDMAN.

HARRY BORSKY. 

